是否有一个简单的方法来填充我的c#对象与JSON对象通过AJAX传递?
这是使用JSON.stringify从页面传递给c# WEBMETHOD的JSON对象
{
"user": {
"name": "asdf",
"teamname": "b",
"email": "c",
"players": ["1", "2"]
}
}
接收JSON对象的c# webmethod
[WebMethod]
public static void SaveTeam(Object user)
{
}
c#类，表示传递给WebMethod的JSON对象的对象结构
public class User
{
public string name { get; set; }
public string teamname { get; set; }
public string email { get; set; }
public Array players { get; set; }
}
当前回答
另一个非常简单的解决方案是使用Newtonsoft库。Json:
User user = JsonConvert.DeserializeObject<User>(jsonString);
其他回答
public static class Utilities
{
public static T Deserialize<T>(string jsonString)
{
using (MemoryStream ms = new MemoryStream(Encoding.Unicode.GetBytes(jsonString)))
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(T));
return (T)serializer.ReadObject(ms);
}
}
}
更多信息请访问以下链接 http://ishareidea.blogspot.in/2012/05/json-conversion.html
关于DataContractJsonSerializer类你可以在这里阅读。
使用JavaScriptSerializer()比提供的通用解决方案更严格:
public static T Deserialize<T>(string json)
当向服务器传递json时，如果json与您试图转换的Object定义不完全匹配，这可能会很方便。
下面的两个例子使用了其中之一
JavaScriptSerializer在System.Web.Script.Serialization或 Json。在System.Web.Helpers下解码
例1:使用System.Web.Script.Serialization
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Web.Script.Serialization;
namespace Tests
{
[TestClass]
public class JsonTests
{
[TestMethod]
public void Test()
{
var json = "{\"user\":{\"name\":\"asdf\",\"teamname\":\"b\",\"email\":\"c\",\"players\":[\"1\",\"2\"]}}";
JavaScriptSerializer serializer = new JavaScriptSerializer();
dynamic jsonObject = serializer.Deserialize<dynamic>(json);
dynamic x = jsonObject["user"]; // result is Dictionary<string,object> user with fields name, teamname, email and players with their values
x = jsonObject["user"]["name"]; // result is asdf
x = jsonObject["user"]["players"]; // result is object[] players with its values
}
}
}
用法:JSON对象到自定义c#对象
using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Web.Script.Serialization;
using System.Linq;
namespace Tests
{
[TestClass]
public class JsonTests
{
[TestMethod]
public void TestJavaScriptSerializer()
{
var json = "{\"user\":{\"name\":\"asdf\",\"teamname\":\"b\",\"email\":\"c\",\"players\":[\"1\",\"2\"]}}";
User user = new User(json);
Console.WriteLine("Name : " + user.name);
Console.WriteLine("Teamname : " + user.teamname);
Console.WriteLine("Email : " + user.email);
Console.WriteLine("Players:");
foreach (var player in user.players)
Console.WriteLine(player);
}
}
public class User {
public User(string json) {
JavaScriptSerializer serializer = new JavaScriptSerializer();
var jsonObject = serializer.Deserialize<dynamic>(json);
name = (string)jsonObject["user"]["name"];
teamname = (string)jsonObject["user"]["teamname"];
email = (string)jsonObject["user"]["email"];
players = jsonObject["user"]["players"];
}
public string name { get; set; }
public string teamname { get; set; }
public string email { get; set; }
public Array players { get; set; }
}
}
例2:使用System.Web.Helpers
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Web.Helpers;
namespace Tests
{
[TestClass]
public class JsonTests
{
[TestMethod]
public void TestJsonDecode()
{
var json = "{\"user\":{\"name\":\"asdf\",\"teamname\":\"b\",\"email\":\"c\",\"players\":[\"1\",\"2\"]}}";
dynamic jsonObject = Json.Decode(json);
dynamic x = jsonObject.user; // result is dynamic json object user with fields name, teamname, email and players with their values
x = jsonObject.user.name; // result is asdf
x = jsonObject.user.players; // result is dynamic json array players with its values
}
}
}
用法:JSON对象到自定义c#对象
using System;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Web.Helpers;
using System.Linq;
namespace Tests
{
[TestClass]
public class JsonTests
{
[TestMethod]
public void TestJsonDecode()
{
var json = "{\"user\":{\"name\":\"asdf\",\"teamname\":\"b\",\"email\":\"c\",\"players\":[\"1\",\"2\"]}}";
User user = new User(json);
Console.WriteLine("Name : " + user.name);
Console.WriteLine("Teamname : " + user.teamname);
Console.WriteLine("Email : " + user.email);
Console.WriteLine("Players:");
foreach (var player in user.players)
Console.WriteLine(player);
}
}
public class User {
public User(string json) {
var jsonObject = Json.Decode(json);
name = (string)jsonObject.user.name;
teamname = (string)jsonObject.user.teamname;
email = (string)jsonObject.user.email;
players = (DynamicJsonArray) jsonObject.user.players;
}
public string name { get; set; }
public string teamname { get; set; }
public string email { get; set; }
public Array players { get; set; }
}
}
这段代码需要添加System.Web.Helpers命名空间，
% ProgramFiles % Microsoft ASP.NET喝ASP。网网络 布林{版本Assemblies喝System.Web.Helpers.dll
Or
% ProgramFiles (x86) % \ Microsoft ASP.NET \ ASP。网网络 页面{VERSION} \总成\ System.Web.Helpers.dll
希望这能有所帮助!
codeplex上的JSON c#类生成器生成的类可以很好地与NewtonSoftJS一起工作。
JavaScript Serializer:需要使用System.Web.Script.Serialization;
public class JavaScriptSerializerDeSerializer<T>
{
private readonly JavaScriptSerializer serializer;
public JavaScriptSerializerDeSerializer()
{
this.serializer = new JavaScriptSerializer();
}
public string Serialize(T t)
{
return this.serializer.Serialize(t);
}
public T Deseralize(string stringObject)
{
return this.serializer.Deserialize<T>(stringObject);
}
}
数据契约序列化器:需要使用System.Runtime.Serialization.Json; 泛型类型T应该在数据契约中更多地序列化
public class JsonSerializerDeserializer<T> where T : class
{
private readonly DataContractJsonSerializer jsonSerializer;
public JsonSerializerDeserializer()
{
this.jsonSerializer = new DataContractJsonSerializer(typeof(T));
}
public string Serialize(T t)
{
using (var memoryStream = new MemoryStream())
{
this.jsonSerializer.WriteObject(memoryStream, t);
memoryStream.Position = 0;
using (var sr = new StreamReader(memoryStream))
{
return sr.ReadToEnd();
}
}
}
public T Deserialize(string objectString)
{
using (var ms = new MemoryStream(System.Text.ASCIIEncoding.ASCII.GetBytes((objectString))))
{
return (T)this.jsonSerializer.ReadObject(ms);
}
}
}
